/* ===========================================================
   Costa Serena EcoResort — Design System
   Paleta: verde profundo da marca (#2E4A3E) + areia + dourado
   =========================================================== */
:root{
  --green:#2E4A3E;        /* marca */
  --green-d:#1f3429;
  --green-l:#3f6151;
  --gold:#C9A24B;         /* dourado / luxo */
  --gold-d:#a9842f;
  --sand:#F4EFE6;         /* fundo claro */
  --cream:#FBF8F2;
  --ink:#23291f;          /* texto */
  --muted:#6b7268;
  --line:#e4ddcf;
  --white:#ffffff;
  --shadow:0 10px 40px -12px rgba(31,52,41,.28);
  --shadow-sm:0 4px 18px -8px rgba(31,52,41,.25);
  --radius:16px;
  --radius-lg:24px;
  --maxw:1180px;
  --font-head:'Cormorant Garamond',Georgia,'Times New Roman',serif;
  --font-body:'Inter','Segoe UI',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-body);color:var(--ink);
  background:var(--cream);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:600;line-height:1.12;margin:0 0 .4em;color:var(--green-d);letter-spacing:.2px}
h1{font-size:clamp(2.1rem,4.6vw,3.4rem)}
h2{font-size:clamp(1.7rem,3.2vw,2.5rem)}
h3{font-size:clamp(1.25rem,2.2vw,1.6rem)}
p{margin:0 0 1rem}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--sand{background:var(--sand)}
.section--green{background:var(--green);color:#eef2ec}
.section--green h2,.section--green h3{color:var(--white)}
.eyebrow{font-family:var(--font-body);text-transform:uppercase;letter-spacing:.16em;font-size:.74rem;font-weight:700;color:var(--gold-d);margin-bottom:14px;display:block}
.section--green .eyebrow{color:var(--gold)}
.lead{font-size:1.12rem;color:var(--muted);max-width:620px}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}

/* ---------- Botões ---------- */
.btn{display:inline-flex;align-items:center;gap:.5em;justify-content:center;
  padding:15px 32px;border-radius:50px;font-weight:600;font-size:.95rem;
  cursor:pointer;border:1.5px solid transparent;transition:.25s ease;letter-spacing:.02em}
.btn--gold{background:var(--gold);color:#2a2412}
.btn--gold:hover{background:var(--gold-d);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn--green{background:var(--green);color:#fff}
.btn--green:hover{background:var(--green-d);transform:translateY(-2px)}
.btn--ghost{background:transparent;border-color:currentColor}
.btn--ghost:hover{background:rgba(255,255,255,.12)}
.btn--block{width:100%}
.btn--lg{padding:18px 40px;font-size:1.05rem}

/* ---------- Header ---------- */
.header{position:fixed;top:0;left:0;right:0;z-index:100;transition:.3s ease;padding:18px 0}
.header.scrolled{background:rgba(251,248,242,.96);box-shadow:var(--shadow-sm);padding:10px 0;backdrop-filter:blur(8px)}
.nav{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--font-head);font-size:1.5rem;font-weight:600;color:#fff}
.scrolled .brand{color:var(--green-d)}
.brand img{height:46px;width:auto;border-radius:8px;background:rgba(255,255,255,.9);padding:3px}
.brand small{display:block;font-family:var(--font-body);font-size:.6rem;letter-spacing:.3em;text-transform:uppercase;opacity:.85;font-weight:600}
.nav-links{display:flex;align-items:center;gap:30px;list-style:none;margin:0;padding:0}
.nav-links a{color:#fff;font-weight:500;font-size:.95rem;transition:.2s;position:relative}
.scrolled .nav-links a{color:var(--ink)}
.nav-links a:not(.btn):hover{color:var(--gold)}
.nav-links .btn{padding:11px 24px}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.nav-toggle span{width:26px;height:2px;background:#fff;transition:.3s}
.scrolled .nav-toggle span{background:var(--green-d)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero__bg{position:absolute;inset:0;z-index:-2}
.hero__bg img{width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(20,32,25,.55) 0%,rgba(20,32,25,.35) 40%,rgba(20,32,25,.75) 100%)}
.hero__inner{max-width:760px;padding-top:80px}
.hero h1{color:#fff;text-shadow:0 2px 30px rgba(0,0,0,.3)}
.hero p{font-size:1.1rem;max-width:540px;margin-bottom:30px;color:#f1ede3}
.hero .eyebrow{color:var(--gold)}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap}
.scroll-cue{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);color:#fff;font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;opacity:.85;animation:bob 2s infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

/* ---------- Faixa de selos ---------- */
.feature-bar{background:var(--green-d);color:#dfe7df}
.feature-bar .container{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;padding-top:26px;padding-bottom:26px}
.feature-bar .feat{text-align:center;padding:6px;font-size:.85rem;display:flex;flex-direction:column;align-items:center;gap:8px}
.feature-bar .feat svg{width:30px;height:30px;stroke:var(--gold)}
.feature-bar .feat b{color:#fff;font-weight:600}

/* ---------- Cards de chalé ---------- */
.grid-rooms{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:30px}
.room-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:.3s;display:flex;flex-direction:column}
.room-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.room-card__img{position:relative;aspect-ratio:4/3;overflow:hidden}
.room-card__img img{width:100%;height:100%;object-fit:cover;transition:.6s}
.room-card:hover .room-card__img img{transform:scale(1.06)}
.room-card__tag{position:absolute;top:14px;left:14px;background:var(--gold);color:#2a2412;font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:6px 14px;border-radius:50px}
.room-card__body{padding:26px;display:flex;flex-direction:column;flex:1}
.room-card__body h3{margin-bottom:6px}
.room-card__meta{font-size:.85rem;color:var(--muted);margin-bottom:12px;display:flex;gap:14px;flex-wrap:wrap}
.room-card__desc{font-size:.95rem;color:var(--muted);margin-bottom:18px;flex:1}
.price{display:flex;align-items:baseline;gap:6px;margin-bottom:18px}
.price small{font-size:.8rem;color:var(--muted)}
.price b{font-family:var(--font-head);font-size:2rem;color:var(--green-d);font-weight:600}
.price span{font-size:.85rem;color:var(--muted)}

/* ---------- Split / alternados ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split--rev .split__media{order:2}
.split__media img{border-radius:var(--radius-lg);box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover;width:100%}
.amen-list{list-style:none;padding:0;margin:18px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.amen-list li{display:flex;align-items:center;gap:10px;font-size:.92rem;color:var(--ink)}
.amen-list li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gold);flex:none}

/* ---------- Galeria ---------- */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.gallery a{display:block;aspect-ratio:1;overflow:hidden;border-radius:12px}
.gallery img{width:100%;height:100%;object-fit:cover;transition:.5s;cursor:pointer}
.gallery img:hover{transform:scale(1.08)}

/* ---------- Região / experiências ---------- */
.exp-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px}
.exp-card{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm);border-top:3px solid var(--gold)}
.exp-card h3{font-size:1.3rem}
.exp-card p{font-size:.92rem;color:var(--muted);margin:0}

/* ---------- Reservas / booking ---------- */
.booking{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:34px;max-width:920px;margin:0 auto}
.booking h3{margin-bottom:20px}
.booking-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:4px}
.field label{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.field input,.field select{padding:13px 14px;border:1.5px solid var(--line);border-radius:12px;font-size:1rem;font-family:inherit;background:var(--cream)}
.field input:focus,.field select:focus{outline:none;border-color:var(--gold)}
.booking-result{margin-top:24px;padding:22px;border-radius:var(--radius);background:var(--sand);display:none}
.booking-result.show{display:block;animation:fade .4s}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1}}
.booking-result .line{display:flex;justify-content:space-between;padding:6px 0;font-size:.95rem;border-bottom:1px dashed var(--line)}
.booking-result .total{font-size:1.4rem;font-weight:700;color:var(--green-d);font-family:var(--font-head);border:none;padding-top:14px}
.notice{font-size:.88rem;color:var(--gold-d);background:#fdf6e3;border:1px solid #f0e3bc;border-radius:12px;padding:12px 16px;margin-top:14px}
.alert{font-size:.9rem;color:#9a3b2f;background:#fbeae7;border:1px solid #f1c9c2;border-radius:12px;padding:12px 16px;margin-top:14px;display:none}
.alert.show{display:block}

/* ---------- CTA / faixa ---------- */
.cta-band{background:linear-gradient(135deg,var(--green) 0%,var(--green-d) 100%);color:#fff;text-align:center;border-radius:var(--radius-lg);padding:64px 30px;position:relative;overflow:hidden}
.cta-band h2{color:#fff}
.cta-band p{color:#dfe7df;max-width:520px;margin:0 auto 28px}

/* ---------- Footer ---------- */
.footer{background:var(--green-d);color:#c5cfc4;padding:70px 0 30px;font-size:.92rem}
.footer a:hover{color:var(--gold)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:40px}
.footer h4{color:#fff;font-family:var(--font-body);font-size:.8rem;text-transform:uppercase;letter-spacing:.15em;margin-bottom:18px}
.footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer .brand{color:#fff;margin-bottom:14px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:24px;text-align:center;font-size:.82rem;opacity:.7}
.social{display:flex;gap:14px;margin-top:8px}
.social a{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.25);display:flex;align-items:center;justify-content:center;transition:.25s}
.social a:hover{background:var(--gold);border-color:var(--gold)}
.social svg{width:18px;height:18px;stroke:currentColor;fill:none}

/* ---------- Breadcrumb / página interna ---------- */
.page-hero{padding:170px 0 70px;background:var(--green);color:#fff;text-align:center}
.page-hero h1{color:#fff}
.page-hero p{color:#dfe7df;max-width:600px;margin:0 auto}
.breadcrumb{font-size:.82rem;color:var(--muted);margin-bottom:24px}
.breadcrumb a:hover{color:var(--gold-d)}

/* ---------- Telefone flutuante ---------- */
.tel-float{position:fixed;bottom:24px;right:24px;z-index:90;display:flex;align-items:center;gap:10px;padding:14px 20px;border-radius:50px;background:var(--green);color:#fff;font-weight:600;font-size:.95rem;box-shadow:0 8px 24px rgba(0,0,0,.28);transition:.25s}
.tel-float:hover{transform:translateY(-2px);background:var(--green-d);color:#fff}
.tel-float svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:1.8}
@media(max-width:560px){.tel-float span{display:none}.tel-float{padding:16px;border-radius:50%}}

/* ---------- Calendário de reservas ---------- */
.cal{background:var(--cream);border:1.5px solid var(--line);border-radius:14px;padding:16px;max-width:440px}
.cal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.cal-head .cal-month{font-family:var(--font-head);font-size:1.3rem;color:var(--green-d);font-weight:600;text-transform:capitalize}
.cal-nav{width:36px;height:36px;border-radius:50%;border:1.5px solid var(--line);background:#fff;cursor:pointer;font-size:1.1rem;color:var(--green-d);display:flex;align-items:center;justify-content:center;transition:.2s}
.cal-nav:hover:not(:disabled){border-color:var(--gold);color:var(--gold-d)}
.cal-nav:disabled{opacity:.3;cursor:not-allowed}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.cal-dow{text-align:center;font-size:.68rem;color:var(--muted);font-weight:700;text-transform:uppercase;padding:4px 0}
.cal-day{aspect-ratio:1;border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:.9rem;cursor:pointer;border:1.5px solid transparent;background:#fff;line-height:1;transition:.12s;user-select:none}
.cal-day.empty{background:transparent;cursor:default}
.cal-day:not(.off):not(.empty):hover{border-color:var(--gold)}
.cal-day.off{background:repeating-linear-gradient(45deg,#f3ece0,#f3ece0 4px,#ece2d2 4px,#ece2d2 8px);color:#b6ab97;cursor:not-allowed}
.cal-day.off .resv{font-size:.5rem;font-weight:700;letter-spacing:.02em;color:#a3795f;margin-top:2px;text-transform:uppercase}
.cal-day.mine{background:#2f9e60;color:#fff;cursor:default}
.cal-day.mine .resv{font-size:.5rem;font-weight:700;letter-spacing:.02em;color:#eafff2;margin-top:2px;text-transform:uppercase}
.cal-day.in-range{background:#dbe6df;border-radius:0}
.cal-day.start,.cal-day.end{background:var(--green);color:#fff;font-weight:700}
.cal-day.start{border-radius:8px 0 0 8px}
.cal-day.end{border-radius:0 8px 8px 0}
.cal-day.start.end{border-radius:8px}
.cal-legend{display:flex;gap:20px;flex-wrap:wrap;margin:14px 0 4px;font-size:.82rem;color:var(--muted)}
.cal-legend span{display:flex;align-items:center;gap:7px}
.cal-legend i{width:16px;height:16px;border-radius:5px;display:inline-block}
.cal-legend .lg-free{background:#fff;border:1.5px solid var(--line)}
.cal-legend .lg-sel{background:var(--green)}
.cal-legend .lg-off{background:repeating-linear-gradient(45deg,#f3ece0,#f3ece0 3px,#ece2d2 3px,#ece2d2 6px);border:1px solid #e2d6c4}
.cal-legend .lg-mine{background:#2f9e60}
.cal-hint{font-size:.85rem;color:var(--gold-d);margin:10px 0 0;font-weight:600}

/* ---------- Lightbox ---------- */
.lightbox{position:fixed;inset:0;background:rgba(15,22,17,.94);z-index:200;display:none;align-items:center;justify-content:center;padding:30px}
.lightbox.show{display:flex}
.lightbox img{max-width:92%;max-height:88%;border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lightbox .lb-close{position:absolute;top:24px;right:30px;color:#fff;font-size:2.4rem;cursor:pointer;line-height:1}
.lightbox .lb-nav{position:absolute;top:50%;transform:translateY(-50%);color:#fff;font-size:3rem;cursor:pointer;user-select:none;padding:0 18px;opacity:.7}
.lightbox .lb-nav:hover{opacity:1}
.lb-prev{left:10px}.lb-next{right:10px}

/* ---------- Reveal on scroll (só anima quando há JS; sem JS o conteúdo aparece — bom p/ SEO) ---------- */
html.js .reveal{opacity:0;transform:translateY(28px);transition:.7s cubic-bezier(.2,.7,.2,1)}
html.js .reveal.in{opacity:1;transform:none}

/* ---------- Responsivo ---------- */
@media(max-width:900px){
  .split,.booking-grid,.footer-grid{grid-template-columns:1fr}
  .split--rev .split__media{order:0}
  .feature-bar .container{grid-template-columns:repeat(2,1fr);gap:18px}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .nav-links{position:fixed;inset:0 0 0 30%;background:var(--green-d);flex-direction:column;justify-content:center;gap:26px;transform:translateX(100%);transition:.35s;padding:40px}
  .nav-links.open{transform:none}
  .nav-links a{color:#fff!important;font-size:1.1rem}
  .nav-toggle{display:flex}
  .section{padding:64px 0}
}
@media(max-width:560px){
  .gallery{grid-template-columns:1fr 1fr}
  .feature-bar .container{grid-template-columns:1fr}
  .hero__actions{flex-direction:column}
  .hero__actions .btn{width:100%}
}